Notes: The 32 largest airports (of which only the top 20 are
shown in this table) each handled more than 1% of all domestically enplaned
passengers in 2001. Denver International, CO, started operations in February
of 1995. Prior to 1995, Denver Metropolitan Aviation Operations took place
at Stapleton International Airport. 1991 data are based on delay information
from Stapleton International Airport. Data are collected from U.S. carriers.
For comparison purposes, Pan Am and Midway are excluded from 1991, and American
Eagle and Aloha are excluded from 2001.